Forming and shaping machine



Dec. 15, 1925.

J. H. NUNNEY FORIING IAN-D SHAPING MACHINE Filed May 26; 1925'- INVENTOR. 7

. z I r z z I I JTHJV ATTORNEY.

Patented Dec. 15, 1925.

PATENT OFFICE.

JAMESHENRY NUNNEY, OF HEADLAND, ALABAMA.

FQR1VIING-AND SHAPING MACHINE.

Application filed May 26, 1925.

To all whom it may conceive:

Be it known that I, Jn uns HENRY NUN- NEY, a citizen of the United States, residing at Headland in the county of Henry and State of Alabama, have invented cer tain new and useful Improvements in Forming and Shaping Machines, of which the following is a specification.

This invention relates to forming and shaping machines designed particularly for use in the bending and forming of cultivator sweeps.

The primary object of this invention is the provision, in a manner as'hereinafter set forth, of a cultivator sweep former having a shiftable eye former block whereby the eye of the sweep may be formed to any desired angle.

Another object of this invention is the provision, in a manner as hereinafter set forth, of a. cultivator sweep bending and forming means whereby both wings of; the sweep may. be bent into the proper position with one swing of a lever of the machine.

Afurther and final object of the inven tion is the provision, in a manner as hereinafter set forth, of a cultivator sweep bending and forming machine of simple but strong and sturdy construction, having few shiftable parts,sin1ple and easy to operate, positive. and effective in action and 1nexpensive to manufacture.

The invention will be best understood from a consideration of the-following detailed description taken in connection with the accompanying drawings forming part of this specification with the understand ing, thatthe invention is not confined to anystrict conformity with the showing of the drawings,' but may be changed and modified so long as such changes and modifications mark no material departure from the salient features of the invention as expressed in the appendedclanns.

In the drawings:

'Figure 1 is a side elevation of the machine embodying this invention showing a cultivator sweep in position thereon.

Figure 2 is a longitudinal sectional View of the machine, after certain readjustments havebeen made therein.

Figure3 is a top plan view of the machine, the sweep forming block thereof bemg removed.

Serial No. 32,965.

Figure 4 is atransverse sectional View upon the line 1-4. of Figure 2.

Figure 5 is a top plan view of the sweep forming block.

Figure 6 is a plan view of a wedge device used to'vary the angle of the sweep forming block.

Referring now to the drawings in detail wherein like numerals of reference indicate corresponding parts throughout the several views of the drawings, numeral 1 indicates a base of any appropriate design, the base here shown having the corners at the front thereof cut off at an angle as shown in Figure 3, and this base is supported upon legs Positioned centrally of the base 1 is an adjustable block 3, this block having a greater base area than the top or sides, and the rear and side walls of this block lean or slope inwardly at a slight angle as indicated at d while the front wall 5 has a long low slope, the lower forward part being of greater width than the upper rear part thereof as shown in the plan view of Figure 3. Extending transversely of the under side of this adjustable block 8 is a ridge 6, which ridge 6 is adapted to seat in like transversely extending grooves 7 formed across the face of an adjustable block wedge 8. This adjustable block wedge is positioned beneath the adjustable block with its narrow or sharp edge beneath the forward part of the adjustable block, thus acting to raise the rear of the adjustable block as is shown in Figure 2. Extending longitudinally of the adjustable block wedge 8 is a substantially elongated slot 9 through which the vertical bolts 10 extend. As shown, these vertical bolts 10 also extend through the adjustable block and through the base 1 and are adjustably secured by means of the nuts 11 at the lower ends thereof. lVhen these nuts are loosened and the bolts raised sufficiently to allow the ridge 6 of the adjustable block to be removed from the transverse grooves of the adjustable block wedge, the wedge can be shifted to vary the height of the rear portion of the ad justable block and thus change the angle of the forward sloping face 5 of. the block. The purpose for this adjustment will be come apparent further on in the specifica tion.

Formed through the base 1 forwardly of the adjustable block 3 are two pair of apertures 12 and 13, respectively. The pair of apertures 12 is located adjacent the lower edge of the face 5, and are spaced apart a distance slightly greater than the width of the base of the block The pair of apertures 13 arespaced the same distance apart as the apertures 12 and are positioned slightly forward of the pair of apertures 12.

Adapted for extension through one or. the other of the pair of apertures 12 or 13 is a pair of eye bolts 1e having nuts 15 threaded upon their'lower ends beneath the base, and these eye bolts 14 pivotally carry or engage one short side of a rectangular presser frame 16. Extending rearwardly from the other short side of the presscr frame 16 is an actuating handle 17. r

V hen the eye bolts 1-l are in the rear pair of apertures 12, the presser frame 16 is of a length sufiicient to allow it to swing down to entirely surround the adjustable block 3 as is clearly shown in Figure When the eye bolts 1aare moved to the front pair of apertures 13, the frame will not swing over the adjustable block 3 but will contact with the same at its rear short side.

Adapted to be positioned over the adjusta ble block 3 is a sweep forming block 18, this block being of hollow construction and comprising a pair of side walls 19 and an inclined front wall 20, the inner face of the front wall 20 being of the same angle as the face 5 of the shiftable or adjustable block 3 and the inner face of the side walls 19 also being of the same angle as the side walls a of the adjustable block- 3 and adapted to snugly engage the side and front walls of the adjustable block 3 when the forming block is in position thereover. The lower portion of the faceof the front wall 20 is curved outwardly as at 21 to give the proper curve to the lower ground engaging point of the sweep.

Tapped into either wall 19 of the forming block 18 are set screws 22 by means of which the forming block is held in position, the inner ends of the set screws 22 engaging the side walls of the adjustable block 3 as indi cated in Figure 4:.

Secured upon the base 1 by means of bolts 23 which extend through the base is a pair of sweep wing blocks 2 1-, these blocks having a substantially rectangular base similar to but smaller than the adjustable block 3, and having sharp inwardly sloping side walls 25 and a long gradually sloping end or front wall 26, the wall 26 being of gradually decreasing width from the bottom to the top of the block. These blocks 2+]: are set at an angle with respect to the side of the adjustable block 3, the rear of the blocks being adj acent the rear and to one side of the block 3 and the forward part of the blocks being directed at an outward angle from the side walls of the adjustable block as shown in Figure 3. The rear of each of the sweep wing blocks is cut at a sharp angle and this angled rear face is substantially parallel with the side edge of the adjustable block 3.

Formed through the base 1 upon each side of the central portion of the adjustable block 3 and directly forward of the forwardly extending corner of each of the sweep wing locks 2 1- are two pair of apertures 27 and 23, respectively, each aperture of each pair being in direct alignment transversely of the base as shown in Figure 3, and adapted to receive therein retaining pins 29, these pins being removably held in position by the nuts 30.

The operation of this machine is as follows:

At the st art, the eye bolts 1 1 are positioned in the apertures 12, and the adjustable block wedge may be positioned as shown in Figure 2, with the transverse rib in the last groove 7 of the wed' e 8. The forming block 18 is placed in pos 'ion over the adjustable block 3 and in this position the lower portionof the front wall. 20 of the forming block will rest upon the eye bolt 11 as shown in Figure 1. The retaining pins 29 are positioned in the-apertures 2?, and the presser frame is swung forwardly from the base out of contact with the forming block 18. The piece of metal 31 which is to be bent to form the cultivator sweep is placed in position with the central portion laying against the face of the wall 20 and the extended ends or wings of the sheet of metal extended between the sloping face 26 of the sweep wing blocks and the pins 29. The presser frame is then swung up and back over the forn'iing block 18, the frame being of sufiicient width to pass over the block 18 leaving space therebetween suflicient to bend the metal sheet 31 of the sweep to the same contour as the sloping face of the forming block. \Vhen the frame 16 has been forced over as far as it will go, the sweep will assume the shape of the forming blockas shown in Figure 1.

After the first operation upon the sheet 31, the presser frame is disenga ed from the sheet, and the eye bolts are moved forward to the apertures 13, the pins 29 are moved forward into the apertures 28 and suitable adjustment is made with the wedge S beneath the adjustable block 3, to give the desired angle to the eye of the sweep 31. The forming block 18 will then rest with the lower edge of the side walls 19 and the wall 20 upon the base 1 as shown in Figure 2, and when the presser frame 16 is again swung over to press the sweep 31 it will contact only with the upper portion thereof as indicated in Figure 2, thus acting to bend the sweep wing to the desired angle, the face 26 of the blocks 2% acting as anvils for this purpose and according to the adjustment made with the wedge 8, the proper angle will be given to the eye of the sweep blades.

Having thus described my invention what I claim is:

1. In a sweep forming machine of the character set forth, a base, a shiftable block thereon, means for adjusting said shiftable block, a removable sweep forming block carried upon said adjustable block, a swinging presser means adapted to form a body about said sweep'block, means for supporting the ends of said body while being formed, and shiftable retaining pins-projecting from said base forwardly of said supporting means adapted to engage the loweredge of the body being formed by the machine.

2. In a sweep forming machine of the character set forth, a base, a shiftable block thereon having an inclined front wall, means for vertically adjusting said shiftable block, a removable sweep forming block carried upon said adjustable block and having a front wall with an inclination equal to that of said shiftable block front wall, a presser means adapted to form a body about the front wall of said forming block, means for supporting the ends of sald body while being formed, and shiftable retaining pins projecting from said base forwardly of said supporting means adapted to engage the lower edge of the body being formed by the machine.

3. In a sweep forming machine of the character set forth, a base, an adjustable block thereon having an inclined front wall,

a rib extending transversely of the bottom of said block, a shiftable means engaged by said rib for vertically adjusting said block, a sweep forming block saddled over said adjustable block, a presser means acting to form a sheet of material over said forming block, and means for engaging and holding the extended sides of said body of material, said shiftable means acting to vary the height of the rear of said block to vary the degree of inclination of the eye of the sweep being formed by the machine.

4;. In a sweep forming machine of the character set forth, a base, a shiftable block thereon, means for adjusting said shiftable block, a removable sweep forming block carried upon said adjustable block, a swinging presser means adapted to form a body about said sweep block, means for supporting the ends of said body while being formed, and shiftable retaining pins projecting from said base forwardly of said supporting means adapted to engage the lower edge of the body being formed by the machine, said presser means comprising a rectangular frame having adjustable pivotal connection with said base forwardly of said adjustable block to receive said forming block therein.

5. In a sweep forming machine of the character set forth, a base, an adjustable block thereon having an inclined front wall, a rlb extending transversely of the bottom of said block, a shlftable means engaged by said rib for vertically adjusting said block, a

sweep forming block saddled over said adjnstable block, a presser means acting to form a sheet of material over said forming block, and means for engaging and holding the extended sides of said body of material, said presser means comprising a rectangular frame having adjustable pivotal connection with said base forwardly of said adjustable block to receive said forming block therein.

In testimony whereof, I aflix my signature hereto.

JAMES HENRY NUNNEY. 

